CH.6 LESSON 3: THE ENDOCRINE SYSTEM Flashcards
The breakdown and utilization of fat for energy.
Lipolysis
A substance in the body that causes a specific reaction or change.
Enzyme
Organs that release substances into the bloodstream (such as hormones) or other surface of the body.
Glands
Chemical messenger released from a gland that travels to cells to activate a specific function.
Hormone
Cell that receives a message from a hormone or enzyme. They exert an action after being stimulated or activated.
Target (receptor) Cell
A gland located in the brain that communicates with the pituitary gland.
Hypothalamus
A small gland in the brain that secretes the hormone melatonin, which helps regulate sleep cycles.
Pineal Gland
An organ with numerous functions, including the production of insulin, glucagon, and digestive juices.
Pancreas
An endocrine gland, located in the anterior neck, responsible for the secretion of many hormones, including thyroxin and calcitonin.
Thyroid Gland
An endocrine gland that controls the secretion of many hormones, including growth hormone.
Pituitary Gland
A gland, located just above the kidneys, responsible for the secretion of catecholamines and cortisol.
Adrenal Gland
Glands, such as the ovaries or testes, that serve sex-specific functions.
Reproductive Glands
Control of blood glucose is regulated in large part by two hormones, ________ and ________, which are controlled and secreted by the pancreas.
Insulin, Glucagon
A hormone secreted by the pancreas that is responsible for glucose metabolism. It causes cells in the liver, muscle, and fat tissue to take up glucose from the blood.
Insulin
A hormone secreted by the pancreas that regulates blood glucose and functions opposite to insulin.
Glucagon